Including Red Hat (RHEL), Oracle Enterprise Linux (OEL), Fedora, Ubuntu, CentOS, HP-UX, Solaris, AIX, etc.
Administration of all aspects of these servers, including but not limited to:
Installation and Maintenance of Operating System (patching, updating, forklifting, etc.)
Installation and Maintenance of Application Software
Various services: DNS, DHCP, Email (sendmail/postfix), iptables, Apache Web Server, LDAP, FTP, NTP, etc.
Capacity Planning (virtual or physical environments)
Configuration and Tuning of server parameters for performance and availability
Shell scripting (bash, perl, etc.)
Virtual environments, including vmWare, Oracle Virtual Server, VirtualBox, etc.
Migration To/From Virtual environments
Planning, Implementation, and Management of Enterprise Backup Solutions (CommVault, Legato, NetBackup, etc.)
LAMP Architecture (Linux|Apache|MySQL|PHP)
MySQL and MariaDB Database (Installation/Management/Programming)
Enterprise Storage Systems (EMC, Hitachi, HP, etc.)